Taxon Report

Ceanothus ophiochilus Boyd, Ross & Arnseth

Vail Lake ceanothus

Print Report

Classification


Scientific Name:	Ceanothus ophiochilus Boyd, Ross & Arnseth
Common Name:	Vail Lake ceanothus
Family:	Rhamnaceae
Element Code:	PDRHA041M0
USDA Plants Symbol:	CEOP
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial evergreen shrub
Blooming Period: Feb-Mar	Feb-Mar
Elevation:	580-1065 (1905-3495)
General Habitats:	Chaparral
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G1
State Rank:	S1
State List:	CE
Fed List:	FT
Other Status:	SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	3
Element Occurrence Ranks:
Excellent (A)	1
Good (B)	2
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
California Counties and Islands: Name (Code)
Riverside (RIV)
Quads: Name (Quad Code)
Pechanga (3311741), Vail Lake (3311648)

Threat List Data from the CNDDB


Threat List Total:	5
EOs with Threat Listed:	Total EOs	% of EOs
	3	100 %
Road/trail construction/maint.	3	100%
Hybridization	2	66%
Non-native plant impacts	2	66%
Development	1	33%
Improper burning regime	1	33%

Notes



Known from only three occurrences near Vail Lake; first discovered in 1989. Threatened by proposed development, alteration of fire regimes, firebreak construction, and long-term hybridization with C. crassifolius. See Phytologia 70(1):28-41 (1991) for original description.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].